0 Compare Dell U4021QW vs Dell U3821DW - DisplayDB

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Comparison between Dell U4021QW vs Dell U3821DW

General Info
Model Number Dell U4021QW Dell U3821DW
Price
Type Monitor Monitor
Year 2021 2021
Brand Dell Dell
Model Series UltraSharp
Model Number U4021QW U3821DW
Display
Screen Size Class 40" (inches) 38" (inches)
Diagonal Size 37.52 in
95.3 cm
952.9 mm
3.13 ft
Screen Width 37.27 in
94.7 cm
946.6 mm
3.11 ft
35.04 in
89 cm
890 mm
2.92 ft
Screen Height 15.27 in
38.8 cm
387.8 mm
1.27 ft
Display Curvature 2500 2300
Display Type IPS IPS
Display Bit Depth 10 bits 10 bits
Max Number of Colors 1073741824 1073741824
Bits 30 30
Screen Aspect Ratio 21:9 24:10
Screen Resolution 5120 x 2160 3840 x 1600
Screen Pixel Pitch 0.229 mm
Screen Pixel Density 109 ppi
Screen-to-Body Ratio 98.38 %
Backlight Source W-LED W-LED
DCI P3 98% 95%
sRGB 100 % 100 %
Screen Brightness 300 cd/m² 300 cd/m²
Static Screen Contrast 1000 : 1 1000 : 1
Screen Horizontal Viewing Angle 178 ° 178 °
Screen Vertical Viewing Angle 178 ° 178 °
Display Minimum Response Time 5 ms 5 ms
Display Average Response Time 8 ms 8 ms
Display Coating Anti-glare/Matte (3H) Anti-glare/Matte (3H)
HDR DisplayHDR 600
3D No No
Size, weight, color
Case Depth 4.03 in
10.2 cm
102.4 mm
0.34 ft
Case Weight 8.8 kg
19 lbs
Case Width with Stand 37.27 in
94.7 cm
946.6 mm
3.11 ft
35.21 in
89.4 cm
894.3 mm
2.93 ft
Case Height with Stand 18.02 in
45.8 cm
457.8 mm
1.5 ft
17.47 in
44.4 cm
443.8 mm
1.46 ft
Case Depth with Stand 9.76 in
24.8 cm
248 mm
0.81 ft
9.89 in
25.1 cm
251.2 mm
0.82 ft
Case Weight with Stand 9.5 kg
21 lbs
13.6 kg
30 lbs
Case Color Black Black
Hardware
Built-in Camera No No
Connectivity 1 x USB 3.2 (Type-C; downstream; 15W)
1 x Ethernet RJ45 (Gigabit)
1 x DisplayPort 1.4
1 x 3.5 mm Audio Out (line-out for speakers)
1 x Thunderbolt 3.0 (Type-C; upstream; 90W; DP Alt Mode)
2 x HDMI 2.0
4 x USB 3.2 (Type-A; Gen 1; downstream)
1 x USB 3.2 (Type-B; Gen 1; upstream)
1 x USB 3.2 (Type-C; upstream; 90W; DP Alt Mode)
4 x USB 3.2 (Type-A; Gen 1; downstream)
2 x HDMI 2.0
1 x 3.5 mm Audio Out (line-out for speakers)
1 x DisplayPort 1.4
1 x Ethernet RJ45
1 x USB 3.2 (Type-B; Gen 1; upstream)
1 x USB 3.2 (Type-C; downstream)
Audio
Audio Speakers 2 x 9W 2 x 9W
Features
Cool Features KVM Switch
Low Blue Light
Picture-in-Picture
Picture-by-Picture
ComfortView Plus
Flicker-free technology
Low Blue Light
Picture-by-Picture
Picture-in-Picture
Flicker-free technology
KVM Switch
Extra Features Security lock slot Security lock slot
Ergonomics
Case Width 35.21 in
89.4 cm
894.3 mm
2.93 ft
Case Height 15.44 in
39.2 cm
392.3 mm
1.29 ft
Vesa Mount Support Yes Yes
VESA Interface Standard Size 100 x 100 100 x 100
Removable VESA Stand Yes Yes
Height Adjustment Yes Yes
Height Adjustment Range 120 mm
12 cm
4.7244 in
0.3937 ft
120 mm
12 cm
4.7244 in
0.3937 ft
Landscape or Portrait Pivot Support No No
Left or Right Swivel Support Yes Yes
Left Swivel 30 ° 30 °
Right Swivel 30 ° 30 °
Forward and Backward Tilt Support Yes Yes
Forward Tilt 5 ° 5 °
Backward Tilt 21 ° 21 °
Frequency and Interpolation
Vertical Digital Frequency 60 Hz 56 Hz - 76 Hz
Horizontal Digital Frequency 30 kHz - 100 kHz
Screen Interpolation Measurement Unit NULL NULL
Accessories
Extras DisplayPort cable
HDMI cable
Thunderbolt 4 (USB-C) Active Cable
USB Type-A to Type-B cable
DisplayPort cable
HDMI cable
USB Type-C cable
USB Type-B 3.2 Gen 1 cable
Certificates and Standards
Licenses ENERGY STAR 8.0
EPEAT Gold
RoHS
TAA Availability
TCO Certified Displays
Usage and Storage Requirements
Safe Operating Temperature Level 0 °C - 40 °C
32 °F - 104 °F
0 °C - 40 °C
32 °F - 104 °F
Safe Operating Humidity Level 10 % - 80 % 10 % - 80 %
Internal Storage Temperature -20 °C - 60 °C
-4 °F - 140 °F
-20 °C - 60 °C
-4 °F - 140 °F
Internal Storage Humidity 5 % - 90 % 5 % - 90 %
Max Operating Altitude 5000 5000
Max Storage Altitude 12192 12192
Dell U4021QW Dell U3821DW